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. 2010 Jul 7;48(9):3380–3382. doi: 10.1128/JCM.00321-10

TABLE 1.

Total numbers of samples tested and percentages positive by the various methods used for Mycoplasma pneumoniae and Chlamydophila pneumoniae diagnosis

Bacterium and method No. of samples tested No. positive % positive P valuea
M. pneumoniae
    Culture 24,677 10 0.04 NA
    PCR 8,509 167 1.9 <0.001
    Serology (IgM by ELISA) 92,507 6,049 6.6 <0.001
C. pneumoniae
    Culture 6,981 0 0 NA
    PCR 994 6 0.6 <0.001
    Serology (IgM by MIF) 58,211 960 1.6 <0.001
    Serology (IgM by ELISA) 3,689 143 3.9 <0.001
a

Compared to culture; determined using Fisher's exact test (one tail). NA, not applicable.